Stereotype-plate boring and cutting machine.



H. P. BEGHMAN.

STBREOTYPE PLATE BORING AND CUTTING MACHINE.

APPLICATION FILED MAR. 15, 1909.

Patented Mar. 2, 1915.

4 SHEETSSHEET 1.

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H, F. BEGHMAN.

STBREOTYPE PLATE BORING AND CUTTING MACHINE.

APPLIOATION FILED MAB..15, 1909.

Patented Mar. 2, 1915.

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We hmooeo H. P. BEGHMAN.

v STEREOTYPE PLATE BORING AND CUTTING MACHINE.

APPLICATION FILED MAR..15,1909.

Patented Mar. 2, 1915.

4 SHEBTSSHEET 3.

198 hmomzo A H. F. BEOHMAN.

-STEREOTYPE PLATE BORING AND CUTTING MACHINE. APPLICATION FILEDMAB.15,190;J. 94 Patented Ma112, 1915.

4 SHEETS-SHEET 4v r1 an, or narrnn cnnnx, MICHIGAN, assmnon To 1PRINTING ranss enemy, or ra'rrnn CREEK, MICHIGAN, e oonronarron orMICHIGAN.

STEEEOTYIPE-PLATE BORING AND CUTTING MACHINE.

Licaaat.

Specification of Letters Patent' watentedaritdhlth.

Application filed March 15, 1909. Serial No. 493,578.

To all whom it may concern:

Be it known that ll, HENRY-F. BEGHMAN, of Battle Creek, in the county ofCalhoun and State of Michigan, have invented certain new and usefulImprovements 1n Stereotype-Plate Boring and Cutting Ma chines; and Ihereby declare that the rjollowing is a full, clear, and exactdescription thereof, reference being had to the accomfiled March 15,1909." Such plates are sub stantially tubular in form and are preferablbut one page in width and one pagein ength and are adapted tosubstantially surround the entire circumference of the plate cylinder inthe press, which cylinders are of very small diameter. It is necessarythat such single page tubular plates should fit accurately upon suchplate cylinders, and should be trimmed to exact length; andthe objectsof the present invention are to bore such plate, or dress it internally,to the exact diameter. requisite to cause it to fit snugly on the platecylinder; to cut oil the I head of metal formed on one end of the platein the casting operation; and to trim such end of the plate accuratelyso that when the plate is put on the cylinder it can be readilysecuredin correct position, and will print uniformly on the web. I

The present invention therefor embodies novel. means for holding androtating the plate while'being bored and trimmed; novel tit means foroperating the boring tools; and novel means 'for'cutting thesurplusmetal head oil of the plate, and for trimmingand beveling its. end.

In the accompanying drawings T have illustrated a machine embodyingthesefeatures, and-the description of such machine will impart a clearunderstanding of the in vention, and the claims summarize the inventionand featuresthereof for which protection is desired.

Tn said drawingsl igure 1 is a front elevation of the machine showing aplate: in

position for trimming. Fig. 2 is a plan view-of Fig. 1. 'Fig. 3 is atransverse section on line 3-3, Fig. 2. 4 is a longitudinal section online 4-4;, ig'.'2, transverse section on line 5-5, lfig. 2. Fig. dis adetail view of one of the clutch memhere. Fig. 7 is a transverse sectionon line 7,7, .Fi'g. 2. h Fig. 8 is a plan view of the longitudinalrib'detached. Figs. 9 and 10 65,

areldetail views of the cutting and trimming too V Mounted on asupporting frame or table 1 of any suitable. form are a pair ofaxiallyalined bearings 2, in which is rotatably 1ournaled a hollowcylinder, or tubular plate holder 3,. whose internal diameter is exactlyequal to the external diameter of the finishedtubular stereotype plate,when fitted on the cylinder, andv whose length is slightly less than thelength of such plate. The bearings 2- may conveniently be cast integralwith a base plate 2 so that they can be readily fastened to the frame 1.

On one end of the cylinder or plate-holder 3 is a gear 3 which mesheswith a pinion 4: on a shaft 4:- journaled in a, bracket 1 attached tothe frame 1, the shaft 4 lying at one side of theaxis of thesleeve andparallel therewith; and pinion 4 on shaft 4 in turnmeshes with a pinion5 on a shaft 5 journaled. in a bracket l attached to the frame 1; shaft5 lying parallel with the plate-holder 3, at one side 01'' thebearings2. Shaft 5 is provided'with a pulley 5 which can be'belted to anysuitable driver. In this manner the plate-holder 3 can be rotated in thebearings 2.

The plate-holder 3 is provided with a longitudinal rib 3 on its innerface,- said rib forming an abutment for one edge of a tubular plate Pwhen the latter is inserted in. the plate-holder, as shown. This plate Pas will be seen by reference to Fig. 3 is tubular, but has a narrowlongitudinal slot 7) .at one side which equals the distance betweenconsecutive impressions to be made on the Web. When a plate P is placedin the cylinder-its slot 79 registers with the rib 3".

lPivoted on tl1e plate-h0lder 3 interme- 103 diate the bearings 2, aretwo plate clamps, which as shown are preferably shaped like bell-cranklevers, whose short arms 3 projectthrough slots in the sleeve and lie inn tches in the bar 3",- While their outer arms Fig. 5 is a 60 arms 3 andlie close the plate-holder. These clamps havetrunnioiis fl fwhich areconfinedin slots in the plate-holder by means of straps 3. Through theouter ends of arms 3 are tapped thumbscrews 3 which bear against thesurface of the plate holdemjand these arms 3 are engagedaiid normallyheld down by 3* attached to the exterior' oftheplateholder. Whentheserewsifl are; loosened springs 3 rock the clamps on their pivots 3 andhold armsfi 'retracted into the notches intheba'r 3"; but-if the" screws3? are turned inward the clamps can berocked so asto project arms 3'beyond the edge of the bar 3", (see Fig. 3.) ,Before'a plate P isslipped into the plate-holder 3 the screws 3 are loosened,and arms 3areretracted as described; then the plate P can be slipped into theplate-holder, the bar 3 occupying the slot 79 in the plate ;then thescrews 3 are turned inward causing arms 3 to engage the plate atone edgeof the slot ,2), and tend to turn the plate in the plate-holder, butthis rotary movement of the plate is prevented by the engagement of theother edge of the slot 7) with the opposite side of the bar 3',consequently the plate P will be expanded within and against the innersurface of the plate-holder 3, and will be securely clamped in thisexpanded position; and while the plate is so held the plateholder isrotated, thereby rotating the plate, and during such rotation the boringand trimming operations are effected as hereinafter explained.

The plate-holderB is preferably lined internally with a copper sheet,indicated at 3, the outer edge of such sheet being spun up against theend of the plate-holder; such copper lining reduces the friction andprevents scratching the surface'of the plate P while being slid in orout of orexpanded within, the plate-holder.

The plate trimming de'vz'ces.On the forward end of frame 1 is mounted aSlide 6 which is adapted to be moved transversely of frame 1, betweensuitable guides 1 attached to the frame. Said slide has an upstandinglug 6 which is perforated for the passage of a tool clamp 6 which holdsa cutter and trimming tool 6. I This tool, see Figs. 2, 9 and 1 has astraight cutting chisel point 6 and a beveled cutting and trimming edge6, in rear of the point. The plate 6 is also provided onits under sidewith a perforated internally threaded lug 6 which depends through a slot1 in the top of the frame 1 and "is engaged by a threaded shaft 6,hearings in the frame 1 and is provided on its outer end with a handle6" By turning this shaft the slide 6 can be moved transversely of frame,and the springs shown in which is supported in suitable cutter moved toand from the plate-holder. The tool 6 is so located relative to theplateholder that when a plate isproperly positioned in the plate-holderand the cutter is advanced, it will first cut the head off of the plateby means of point 6 the plate being rapidly rotated by and with theplateholder; and then by further advancing the tool 6 the beveledcutting edge (3 of the cutter will engage the edge of the plate and trimit down and bevel such edge as is desired to prepare it for engagementwith the cylinder-plate clamps. The tool 6 can then be retractedfout ofthe way by properly manipulating th'eshaft 6 7 The boringdem'ces.-Arranged axially of the plate-holder 3 and pro ectingtherethrough is a bar 7, which also extends through the bracket 1 and isthereby supported upon the frame 1, the bar 7 being located at one sideof the bearing of the shaft 4. In the under side of bar 7 is alongitudinal groove in which is mounted a slid-able rack 8 which alsopasses through a slot in the bracket 1. The forward end of rack 8 isfastened to a tool-carrier 8 slidably mounted on the bar 7, and carryingadjustable trimming tools or cutters 8 which are secured thereto bybolts 8. The carrier 8 can be moved longitudinally on bar 7 by shiftingthe rack 8. To the rear of rack 8 is connected a strap or rope 8 whichruns over a pulley 7 hung on the rear end of bar 7and has a weight 8attached to its free end, said weight being sufiiciently heavy tonormally draw the tool carrier 8 back against the bracket 1, therebywithdrav-ring trimmers 8 from operative position within the plate-holder3.

The tool carrier 8 may be moved inward, when desired by the operator, bmeans of a pinion 8 meshing with rack )ar 8 and mounted on a transverseshaft 8 having hearings in brackets 1 attached to frame 1; said shaftextending to the shaft 4 and having a worm-gear 8 meshing with a worm 4on shaft 4. The pinion 8' is loose on the shaft 8, but may be lockedthereto, when desired, means of a suitable clutch. As

l igs. 5 and 6 gear 8 has a clutchface 9 on one face adapted to beengaged \by a sliding'clutch-membcr 9 splincd on shaft 8 and havin agroove engaged by a roller 9'" on a hand lever 9, which is pivoted at 9"on bracket '9 attached to bar 7. By properly shifting this lever 9, theclutch 9 can'be thrown into or out of engagement with the clutch 9, andconsequently the gear 8' can be caused to rotate with the shaft 8 atwill. Preferabl after the plate is trimmed as above escribed and thetool 6 retracted out of the way, the operator throws clutch 9' intoengagement with the gear 8, and the latter causes rack 8" to movethetool carrier 8 forward on bar 7- until it lit til

ll. tli. but ,Wd? h il traverses the entire length ofthe late in holder3. The-cutters-8 on the too carrier having been previouslyyproperlyadjusted, operate toborefout or'trim the interior of the plate P, to-theexact diameter desired; and as the plate is. firmly expanded againsttheinterior of the'plate-holder thei late is truly and accuratelyboredsoas-tot truly and snugly upon the--plate-cylinder of the press. When thecarrier8 hastraversed through the plate the clutch 9"is thrown out ofengagement with the'gear'8', and

thereupon the weight 8 draws the tool car.- rierbach to the initialposition out of the way. Then the shaft 5 can be stopped-and thefinished plate removed.

An indicator or'pointer 12- may be attached to one'ot-thebearings-Qadjacentthe cutting, devices to indicateto the operator theparticular length of; the finished plate and assist him inproperlyxpositioning the plate-in the plate holder.

vHaving described my invention ;what ll claim as new and desire tosecure by Letters Patent thereon is:

1. In combination, a rotary plateholder, means for rotating-saidholder,means'tor securing a tubular stereote plate in said holder, atool'support e it supported in the holder; a boring tool onsaidfsupport, means tor reciprocating saidtool aniall of the holder totrue the nterior otthe p ate,

a cuttin tool,'and meansntor reci rocating the cutting tool transverselyof t e holder to trim the end (of the plate,

2. ln combination, a cylinder adapted to contain a slottedtubular-plate, a longitudinal rib in saidcylinder adapted to engage theslot in the plate, and ad]ustable devices in the cylinder at one side ofthe rib adapted to engage one side of the slot inthe plate and expand,and thereby secure the tubularplate in said cylinder, means for rotatingthe cylinder, and means torbonng the expded plate 3. The combination ofa rotatable cylin- 4 der adapted 'to contain 'a slotted tubular plate,means for expanding. the late in the cylinder,f astationary bar eaten mgaxially within saidcylinder, a non-rotatable tool carrierslidablymounted on said bar, a rack connected with the carrier, a pinionengaging said ch, a driven shatt carrying and pinion, and a clutch forlocking said plnlon to the shaft, and means for rotating said cylinderto cause the tool to operate on the late. p t. The combination ot arotatable cylinder adapted to contain a slotted tubular plate, means forexpanding the plate in the cylinder, a fixed bar extending ax ally oithe plate in said cylinden-a tool carrierslidably mounted on said bar, ara'clrengaging said carrier, a pinion engaging said rack, a driven shaftcarrying said pinion, a clutch for locking said pinion to the shaft,means for throwing the clutch into and out of engagement, and means forretracting the rack bar when the clutch is disengaged; with means forrotating said cylinder to cause the tool to operate on the plate.

5. The combination of a rotatable cylinder adapted to contain a slottedtubular plate, a bar extending longitudinally and attached to saidcylinder and adapted to engage one edge of the slot in the plate,devices on the cylinder engaging the opposite edge of the slot to expandit in the cylinder, a tool support extending longitudinally of thecylinder, a tool carrier slidably mounted on said support, means forreciprocating said carrier, and means for rotating the cylinder to causethe tool to o crate on the plate.

6. A machine for fihishing slotted tubular stereotype plates comprisinga pair of bearings, a rotatablecylinderjournaled therein, meansforlsecurlng a tubular-plate in said cylinder, gearing for rotating saidcylinder,

a bar extending axially through said cylinder, a tool carrying slide onsaid bar, and means for reciprocating said slide en'said bar,substantially as described.

7. A machine for finishing stereotype plates comprising a rotatablecylinder adapted to contain a slotted tubular plate, means for securingand expanding such plate in said holder, and gearing for rotatlng saidcylinder, and means for boring the plate; with a transversely movableslide adjacent one end of said cylinder, and a cutting and trimming toolcarried thereby adapted to operate on the plate while the cylinderrotates.

8. The combination of a rotary cylinder adapted to contain a slottedtubular-plate having I a narrow longitudinal slot, and means engagingthe slot in the plate for expanding and cramping such plate in saidcylinderywith means or rotating said 0 linder, and means for boring theexpandedplate.

9. In a machine for finishing tubular stereotype plates, a tubularholder, means for expanding a slotted tubular-plate placed Within saidholder so as to clamp the plate therein, and means for rotating theholder.

10, In a machine for finishing tubular 'tating said holder and plate;with a nonrotatable tool adapted to bore the interior of the plate, andmeans for reciprocating said tool through the plate as the latter isrotated in the holder.

12. In combination, a rotary cylindric holder adapted to contain acylindric tubulair-plate, means for rotating said holder, means forexpanding a slotted tubular 1o stereotype plate in said holder so as tohold its type face in close contact with the inner wall of the holder; aplate boring tool, and means for reciprocating said tool axially of theholder.

13. In combination, a rotary cylinder adapted to contain a tubular platehaving a narrow longitudinal slot, and means engaging the slot in theplate for expanding such plate and cramping it in said cylinder; with acutting tool adjacent'the edgeof the cylinder adapted to trim the edgeof the plate While held in the cylinder.

l t. The combination of a rotary cylinder adapted to-contain aslottedtubular-pla-te having a narrow longitudinal slot, and

means engaging the slot in the plate for expanding and cramping suchplate in said cylinder; with means for rotating said cylinder, and meansfor boring the expanded plate; with a cutting tool adjacent the edge or"the cylinder adapted to triinthe edge of the plate while held in thecylinder.

15. In a machi ne for finishing tubular stereotype plates, a rotarycylindric holder,

means for securing a slotted cylindric tubular-plate therein byexpanding said plate in the holder, a non-rotatable tool for operatingon the tubular-plate within the holder, and means for moving said toollongitudi- 4 nally of the holder during the rotation of thetubular-plate by the holder; with a cutting tool adjacent the edge ofthe cylinder adapted to trim the edge of the plate While held in thecylinder.-

16. In combination, a rotary cylinder adapted to contain a tubular-platehaving a longitudinal slot, bell-crank levers pivoted on said cylinder,one arm of each lever projecting into the cylinder through openings inthe side thereof and adapted to engage one edge of the slot in the plateto expand the same in the cylinder, and means engaging the outer arms ofthe levers for adjusting them. I

17. In combination, a rotary cylinder adapted to contain a tubular platehaving a narrow longitudinal slot, and means adapted to engage the slotin the plate from the exterior side thereof for expanding such platecircumferentially and thereby cramping it in said cylinder.

18. In combination, a cylindric plate holder adapted to contain acylindric tubular-plate, means for rotating said. holder; 21 boringtool, a stationary support therefor mas er extending into said holder;means for reciprocating said tool on said support through adapted tocontain a single-page tubularplate, means for expanding and securingsaid plate within said holder to rotate therewith; means for rotatingthe holder and plate; a movable shaver adapted to traverse theplate-holder and plate to shave the latter; and means for reciprocatingthe shaver.

21. In a machine for finishing tubular stereotype plates, :1 cylindricplate-holder adapted to contain a slotted tubular plate, an abutment insaid holder adapted to engage one edge of a slot in the plate, means insaid holder for engaging the opposite edge of the plate, and means forcausing said devices and abutment to separate so as to forcibly expandthe plate in the holder.

22. In a machine for finishing tubular stereotype plates, 9. cylindricplate holder adapted to contain a slotted tubular plate, an abutment insaid holder ada ted to engage one edge of a slot in the p ate, means insaid holder for engaging the opposite edge of the plate, and means forcausing said devices and abutment to separate so as to forcibly expandthe plate in the holder; and a shaver adapted to traverse the holder andplate.

23. In a machine for finishing tubular stereotype plates, a cylindriclate-holder adapted to contain a slotted tu ular plate,

an abutment in said holder adapted to engage one edge of the slot insuch plate, means in said holder for engaging the opposite edge of theplate, and means for causing said devices and abutment to so arate so asto forcibly ex and the plate in the holder; withmeans or rotating theholder and plate and a shaver adapted to traverse the holder.

24. In a machine for finishing tubular stereotype plates, a cylindrictubular plate holder, means for securing a tubular pageplate therein, atool holder mounted axially of said plate holder, a rack bar forreciprocating said tool holder, a pinion for driving the rack-bar, acountershaft on which said pinion is mounted, gearing for driving thecountershaft, and a clutch for locking the rack-bar pinion to saidcountershaft.

25. in a machine for finishing tubular stereotype plates, a cylindrictubular plate holder, means for securing a tubular plate therein, a barextending axially through the plate holder, a shaver slidably mounted onsaid bar, a rack-bar for operating said shaver; mechanism for drivingthe shaver, a pinion for driving the rack-bar, a countershaft on whichsaid pinion is mounted, gearing for driving the countershaft from theplate holder driving mechanism, and a. clutch for locking the rack-barpinion to said countershatt.

26. The combination of a rotary cylinder adapted to contain a slottedsingle-page tubular-plate, means for rotating said cylinder, and meansengaging the slot in said plate for expanding and cramping the same insaid cylinder, and means for shaving the plate While expanded.

27. lln a machine for finishing stereotype plates, a rotary plate holderadapted to contain a single-page tubular plate, means for expanding sucha plate within said holder to secure it therein, a non-rotatable shaverfor operating on the interior of the plate While it is carried by theholder, and means for moving said shaver longitudinally of the plateduring the rotation of the plate by, the holder.

p 28. The combination of a rotatable cylinder adapted to contain aslotted single-plate tubular plate, an abutment in said cylinder adaptedto engage one edge of the slot in said plate, devices on the cylinderengaging the opposite edge of the slot in the plate to expand it in thecylinder, a bar extending axially of the cylinder, a shaver slidablymounted on said bar, means for reciprocating said shaver, and means forrotating the cylinder to cause the shaver tooperate on the plate.

29. In combination, a cylinder adapted to contain a slotted single-pagetubular-plate, a longitudinal abutment in said cylinder adapted toengage one edge of the slot in the plate, and adjustable devices in thecylinder at one side of the abutment adapted to engage the other edge ofthe slot in the plate and expand the tubular-plate tightly in saidcylinder; with means for rotating the cylinder and means for shaving theexpanded plate.

In testimony that l[ claim the foregoing a my own, ll allix my signaturein presence of two witnesses.

HENRY F. BECHMAN.

Witnesses:

FRANK W. DUNNING, l'rivmo K. Srone.

